Raiders of the Lost Ark featurette in HD (1981)
https://www.youtube.com/watch?v=8D1iKFHZvc4 - from the Wright House Media YouTube channel (10 mins.)
The blurb:
“Original promotional featurette to Raiders from 1981. Includes interviews with Steven Spielberg, George Lucas, Harrison Ford, Karen Allen, & Robert Watts. Plus a look at the making of a lot of the classic sequences that make up the film including the truck chase, the snake pit, a blink & you’ll miss it deleted scene between Indiana & the swordsman, & a truck explosion on the final shooting day of production.”
Backup link in SD:
https://www.youtube.com/watch?v=_N7T9hwr2NE
Great Movie Stunts: Raiders of the Lost Ark (TV special, 1981)
https://www.youtube.com/watch?v=-8w4m_i07iM - from the IntermissionSociety YouTube channel (48 mins.)
The blurb:
“Awesome 1981 television special hosted by Harrison Ford on the making of the film plus an overview of the history of stunt work in the movies.”
… and also, this wonderful thing…
Raiding The Lost Ark: A Filmumentary By Jamie Benning (2012)
https://vimeo.com/36011979 - from the Filmumentaries - Jamie Benning Vimeo channel (2 hrs. and 23 mins.)
An exhaustive fan-made “filmumentary” made up of interviews, commentary, cut scenes and behind the scenes footage that run alongside the original film.
An interview with the creator:
https://www.kpbs.org/news/2011/nov/19/rants-and-raves-raiding-lost-art-filmumentary/